Azure Virtual Network
An Azure networking service that is used to provision private networks and optionally to connect to on-premises datacenters.
I decided to start over. Thank you for your help everyone.
Linux VM not accessible from Internet
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Mario Chretien
0
Reputation points
Linux VM not accessible from Internet. Ran multitude of tools nothing showing why. I see in the resolution that one of the fix mentions a public IP on the VM itself. Is this mandatory to be able to access the VM via the Internet?
Thank you
Azure Virtual Network
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Vallepu Venkateswarlu 6,045 Reputation points Microsoft External Staff Moderator2026-02-13T21:12:09.7966667+00:00 Hi @ Mario Chretien,
Welcome to Microsoft Q&A Platform
Since you are unable to access the internet from the Linux VM, please check the following:
Verify the NSG outbound rules and ensure that outbound internet access is allowed in NSG.
Check whether the public IP address is correctly mapped to your VM. If you are using a public IP, make sure it is properly associated with the VM.
The OS-level firewall within the VM may also be blocking connectivity. Ensure it is configured to allow the required outbound access.
sudo ufw statusIf active and denying outbound, temporarily disable for testing
sudo ufw disableFollow the Azure VM can't connect to the internet
Please "upvote" if the information helped you. This will help us and others in the community as well.
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Mario Chretien 0 Reputation points
2026-02-13T21:48:12.9533333+00:00 HI, I check all my settings and I don't see anything wrong.
I added some pics of my setup.
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Vallepu Venkateswarlu 6,045 Reputation points Microsoft External Staff Moderator
2026-02-13T21:56:36.34+00:00 Could you please confirm whether the NAT Gateway is assigned to the VM subnet? and also share the VM overview Screenshot in private message for further troubleshoot.
You can create an outbound rule in the NSG as shown below
Check the routes on the Linux VM using
ip route showLook for:default via <gateway-ip>This confirms that the VM has a default route (0.0.0.0/0) → Traffic will go to that gateway.Please "upvote" if the information helped you. This will help us and others in the community as well.
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Mario Chretien 0 Reputation points
2026-02-14T16:13:13.5066667+00:00 Hi, The NAT-GATEWAY as the Subnet of the Ubuntu Server. MyUbuntuVM - Microsoft Azure.pdf
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kagiyama yutaka 1,170 Reputation points2026-02-13T21:01:44.87+00:00 when a linux vm won’t answer from the internet, the platform is telling you “the packet never made it out,” not “the vm is broken.” i’d walk the outbound path in order — nic → nsg → route → pip — whichever hop drops the probe is the root cause.